Sunday A cold westerly pattern. Heavy showers affect western regions throughout the day, with snow to low levels, plus hail and isolated thunder. Clusters of showers spreading eastwards, locally frequent for a few hours. Early snow and rain may also affect north-east England, but clearing. Sunny spells away from showers, and some east & southern areas of England may escape often dry. Squally winds, gusting gale force locally. Just 2 to 4C, and feeling sub-zero. The south-east may reach 6C.

Sunday night Many places will become dry with skies clearing into the evening. A chilly westerly breeze persists, strongest in the north. Snow showers will remain frequent in western Scotland, and a few snow showers are possible around western coasts elsewhere. Temperatures widely close to freezing, and sheltered spots will drop to -2C or locally lower in the Scottish Highlands. Widespread frost, and ice following showers.

Monday A chilly westerly wind persists across the British Isles, later turning southwesterly. Showery in most western regions, with snow falling to low levels, locally frequent. Hail and isolated thunder possible, plus squally winds. A scattering of showers will drift eastwards, but central and eastern regions will be often dry with sunny spells. A front moves into Ireland later, bringing a spell of heavy rain into the night. Highs 3 to 7C, highest south-east.

Tuesday A frontal system passes eastwards. A period of heavy rain and extensive hill snow early in the day. A risk of snow to lower levels in northern England & Scotland. Brisk southwesterly winds ahead of the front, with local gales, then turning westerly. Brighter skies developing from the west, but heavy snow and hail showers follow into the north-west. Temperatures 0 to 3C in the north, around 5C for the Midlands, up to 7 or 8C in the far south.